A dramatic example, but I imagine a solid state battery (and the following generations) will be harder to design if half of the research team has to care for their senile mothers.

> if you believe humanity can successfully navigate a demographic inversion the likes of which it has never seen before, while managing the changing climate.

I agree with the comment above mine, I do not believe we can manage this. With less population, specialization, and attention available among the polluting countries, I see those countries (such as Italy) reverting to things that are easier to manage.

Likely more stuff we can just grab out of the ground and burn.